1221476 has 6 divisors (see below), whose sum is σ = 2137590. Its totient is φ = 610736.

The previous prime is 1221469. The next prime is 1221499. The reversal of 1221476 is 6741221.

It can be written as a sum of positive squares in only one way, i.e., 1081600 + 139876 = 1040^2 + 374^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152681 + ... + 152688.

It is an arithmetic number, because the mean of its divisors is an integer number (356265).

2^1221476 is an apocalyptic number.

It is an amenable number.

1221476 is a deficient number, since it is larger than the sum of its proper divisors (916114).

1221476 is a wasteful number, since it uses less digits than its factorization.

1221476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305373 (or 305371 counting only the distinct ones).

The product of its digits is 672, while the sum is 23.

The square root of 1221476 is about 1105.2040535575. The cubic root of 1221476 is about 106.8960471755.

Adding to 1221476 its reverse (6741221), we get a palindrome (7962697).

The spelling of 1221476 in words is "one million, two hundred twenty-one thousand, four hundred seventy-six".